Analysis

  • max time kernel
    133s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    11-06-2024 07:34

General

  • Target

    9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe

  • Size

    120KB

  • MD5

    9d70ecfe374efce15ae7055af48ad6fc

  • SHA1

    5e5715a0c2446079f133dbf3bb764ede794f6494

  • SHA256

    756a600939ad6af309ab14197ef667cdb23c755b10bd957a71f1089f35fe134a

  • SHA512

    5b5f83e81347167114c2a2b5448dc95acd5afea2e2f752f48b47c480e1d2276e214e56b08c57cfe7945c4fa6fb98981fe75eb3701a6b5c9e609f00515424b6e2

  • SSDEEP

    3072:y12SAsHG9akBThPFu6wJnpo33ebEvTHM4O:y6NaiFkJnpjbEjM4

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Launches sc.exe 3 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2424
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wpdsjahp\
      2⤵
        PID:2584
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zvpvbdvm.exe" C:\Windows\SysWOW64\wpdsjahp\
        2⤵
          PID:2600
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create wpdsjahp binPath= "C:\Windows\SysWOW64\wpdsjahp\zvpvbdvm.exe /d\"C:\Users\Admin\AppData\Local\Temp\9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:2708
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description wpdsjahp "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:2748
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start wpdsjahp
          2⤵
          • Launches sc.exe
          PID:2760
        • C:\Windows\SysWOW64\netsh.exe
          "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
          2⤵
          • Modifies Windows Firewall
          PID:2520
      • C:\Windows\SysWOW64\wpdsjahp\zvpvbdvm.exe
        C:\Windows\SysWOW64\wpdsjahp\zvpvbdvm.exe /d"C:\Users\Admin\AppData\Local\Temp\9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2848
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Sets service image path in registry
          • Deletes itself
          PID:2544

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\zvpvbdvm.exe

        Filesize

        11.9MB

        MD5

        5a32c10a4b7fb19274ed64f273546933

        SHA1

        a93efe5349bce22e2bfacd1acaea0f29cccf37b3

        SHA256

        bae1a929d4ac8de55b0b840f29398fae2215b0763de68c67498aac33c97c4e68

        SHA512

        83f4e968dbcc8472535a2a98e52552d4193bfca4d827a4f595f252c0e367cb3f7d040e952d335731e2a419fa92ba09cf8027ec61dc982ce4ecb963a46f6b318e

      • memory/2424-0-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/2424-2-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/2424-1-0x0000000001E50000-0x0000000001E51000-memory.dmp

        Filesize

        4KB

      • memory/2424-13-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/2544-10-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2544-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2544-7-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2544-14-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2544-15-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2848-6-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/2848-11-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB